What happens when gasoline is heated

One after the other: if you drive to a gas station, you will not see the huge gasoline and diesel stocks. They are stored underground. Of course, that's also a problem of space; Imagine if the tanks with 10,000 liters and more capacity per type were on the premises. Incidentally, this would be entirely permissible if there was an explosion-proof tank on a site inaccessible to public transport. But underwater storage also has the advantage that a constant temperature, usually between 5 and 10 ° C, can be ensured. High outside temperatures of around 30 ° C would heat the fuel by up to 20 ° C. And then something happens that would become a problem in a fully fueled car: the gasoline expands when it is warm and requires a larger tank volume, up to 2% more. This means that if the actual volume of your fuel tank is 50 liters and the outside temperature is around 30 ° C, the fueled 50 would expand to a volume of 51 liters. Correspondingly more for larger tanks.

If the vehicle is in the blazing sun, 30 ° C very quickly increases, and so does the expansion. So if you do not drive a longer distance immediately after refueling and thus use fuel immediately, but instead park the vehicle very quickly after refueling, leave some room for expansion as a precaution. Even if a fuel tank is connected to an expansion tank via hoses, it can happen that too much gasoline or diesel escapes through the vent pipe or through the rubber sleeve of the tank cap. The fuel runs down the paintwork and can damage it and the underbody of the vehicle. In the worst case, it can even lead to a vehicle fire. So be careful on very hot days and give your gasoline some space to unfold.

Read 4117 times Last change on Thursday, 18 March 2021 12:16